import datetime
from django.test import TestCase, Client
from django.utils import timezone
from django.urls import reverse

from .models import Question
import coverage

# Create your tests here.
client = Client()

cov = coverage.Coverage()
cov.start()

class QuestionModelTests(TestCase):
    def test_was_published_recently_with_future_question(self):
        """
        was published recently() returns False for question whose 
        pub_date is in the future
        """
        time = timezone.now() + datetime.timedelta(days=30)
        future_question = Question(pub_date=time)
        self.assertIs(future_question.was_published_recently(), False)

    def test_was_published_recently_with_old_question(self):
        """
        was published recently return False for questions whose
        pub_date is older than 1 day
        """
        time = timezone.now() - datetime.timedelta(days=1, seconds=1)
        old_question = Question(pub_date=time)
        self.assertIs(old_question.was_published_recently(), False)

    def test_was_published_recently_with_recent_question(self):
        """
        was published recently returns True for questions whose
        pub_date is within the last day
        """
        time = timezone.now() - datetime.timedelta(
            hours=23, minutes=59, seconds=59)
        recent_question = Question(pub_date=time)
        self.assertIs(recent_question.was_published_recently(), True)


def create_question(question_text, days):
    time = timezone.now() + datetime.timedelta(days=days)
    return Question.objects.create(question_texts=question_text, pub_date=time)


class QuestionIndexViewTests(TestCase):

    def test_no_question(self):
        response = client.get(reverse('polls:index'))
        self.assertEqual(response.status_code, 200)
        self.assertContains(response, "No polls are available!")
        self.assertQuerysetEqual(response.context['latest_question_list'], [])

    def test_past_question(self):
        create_question(question_text="Past question", days=-30)
        response = client.get(reverse('polls:index'))
        self.assertQuerysetEqual(response.context['latest_question_list'],
                                 ['<Question: Past question>'])

    def test_future_question(self):
        create_question(question_text="Future question", days=30)
        response = client.get(reverse('polls:index'))
        self.assertContains(response, "No polls are available!")
        self.assertQuerysetEqual(response.context['latest_question_list'], [])

    def test_future_question_and_past_question(self):
        create_question(question_text="Future question", days=30)
        create_question(question_text="Past question", days=-30)
        response = client.get(reverse('polls:index'))
        self.assertQuerysetEqual(response.context['latest_question_list'],
                                 ['<Question: Past question>'])

    def test_two_past_questions(self):
        create_question(question_text="question1", days=-30)
        create_question(question_text="question2", days=-5)
        response = client.get(reverse('polls:index'))
        self.assertQuerysetEqual(
            response.context['latest_question_list'],
            ['<Question: question2>', '<Question: question1>'])

class QuestionDetailViewTests(TestCase):

    def test_future_question(self):
        future_question = create_question(
            question_text="future question", days=30)
        url = reverse('polls:detail', args=(future_question.id, ))
        response = client.get(url)
        self.assertEqual(response.status_code, 404)

    def test_past_question(self):
        past_question = create_question(question_text="past question", days=-5)
        url = reverse('polls:detail', args=(past_question.id, ))
        response = client.get(url)
        self.assertEqual(response.status_code, 200)
        self.assertContains(response, past_question.question_texts)

cov.stop()
cov.save()

cov.html_report()